If you have a Cerakoted version a set screw version won't fit. Grind away or go with an SLR clamping block
Sniper Gray Cerakote... Alas, I don't care to run an adjustable gas block on this gun, and SLR only seems to make pinned non-adjustable gas blocks. Grinding may be my best bet.
Out of curiosity, why do you say a set screw block won't fitshouldn't it still fit any .750" barrel?
The thickness of the cerakote can remove the clearance needed to slide on a set screw gas block. A clamp on gas block can be pried apart enough to slide it over.